I was thinking that a Tesla gun would be great. Just like the Tesla generator, it never misses. The Tesla gun would attack everything around a certain radius (only one target at a time), of course, it would not be able to attack through walls or doors. The problem with a Tesla gun would be that it rans out of electricity very quickly. The gun would be equipped with a tiny Tesla generator, and would recharge after some time.
I was thinking that it could zap for 3 seconds and would need to recharge for 10 seconds. After 4 seconds of recharging, it would be able to zap for 1 second, after 7 seconds of recharging, it would be able to zap for 2 seconds and after 10 seconds of recharging, it would be able to zap for 3 seconds.
